Combining various LESS files that import nested variables and mixins to generate a unified CSS file

I have requested assistance in cleaning up the LESS library and style file referenced in the head section of the application to reduce redundancy and improve load time. Currently, the style.less file is being used as the main stylesheet, importing other less files such as variables, mixins, base, kendo, header, navigation, lists, and treeview. The goal is to consolidate all these into a single CSS file named style.css. While most of the files are compiling correctly, issues persist with variables.less and mixins.less not converting to CSS. It seems that nested rules within these files might be causing errors. I've heard that a config file may be necessary to properly process nested variables and mixins when using plain CSS. Any guidance or solutions you can offer would be greatly appreciated. Thank you.

Answer №1

These are the configurations I use for the Web Essentials LESS Compiler:

SETTINGS > WEB TOOLS > LESS

Auto-compile related files on save: ENABLED
Compile files during build: ENABLED
Compile files upon saving: ENABLED
Generate source map files: ENABLED
Custom output folder: _PATH_TO_SAVE_YOUR_SINGLE_CSS_FILE
Do not retain raw compilation output: DISABLED
Manage source maps: ENABLED
Strict Math: DISABLED
Display Preview Panel: ENABLED

All LESS files, except the main import file, should have a prefix of "_". For instance:

_base.less
_variables.less
style.less (imports base and variables).

Ensure you're using version 2.5 of Web Essentials. There was a bug in versions after 2.5 that affected the precompiler. It's uncertain if they've released patches yet.

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